// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//


#pragma once

#include <string>
#include <pollux/type/type.h>

namespace kumo::pollux {
    /// Normalize Presto types such as INT and DOUBLE PRECISION and convert to Pollux
    /// type.
    TypePtr typeFromString(
        const std::string &type,
        bool failIfNotRegistered = true);

    TypePtr customTypeWithChildren(
        const std::string &name,
        const std::vector<TypePtr> &children);

    /// Convert words with spaces to a Pollux type.
    /// First check if all the words are a Pollux type.
    /// Then check if the first word is a field name and the remaining words are a
    /// Pollux type. If cannotHaveFieldName = true, then all words must be a Pollux
    /// type.
    std::pair<std::string, TypePtr> inferTypeWithSpaces(
        std::vector<std::string> &words,
        bool cannotHaveFieldName = false);
} // namespace kumo::pollux
